时间:2019-01-08 作者:英语课 分类:Scientific American(八)月


英语课

That’s what it might sound like if I had a tongue stud, hitting my teeth. Maybe you’ve seen people with studs in their tongue clicking it up against their front teeth, a move known as “playing.” But it turns out that the habit may destroy some smiles.


University of Buffalo 1 researchers noticed that local high school students who had a barbell-type tongue stud commonly pushed the piercings against their front teeth. Then they examined a 26-year-old patient at the school’s dental clinic. She’d had been complaining about a large gap that had developed between her front two teeth. Seven years previously 2, she got a tongue stud. And every day, for seven years, she pushed that stud up against her teeth.


The researchers say tongues are strong, and it makes sense that the force of “playing” will move teeth, even forcing them apart. The case was written up in the Journal of Clinical Orthodontics.


Tongue piercings have also been associated with infections, chipped or broken teeth, and gum trauma 3. And the patient? She got braces 4 to push her teeth back together. Which probably didn’t look quite as cool as she thought the tongue stud was.


Thanks for the minute. For Scientific American's 60-Second Science, I'm Cynthia Graber.

 



n.(北美)野牛;(亚洲)水牛
  • Asian buffalo isn't as wild as that of America's. 亚洲水牛比美洲水牛温顺些。
  • The boots are made of buffalo hide. 这双靴子是由水牛皮制成的。
adv.以前,先前(地)
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
n.外伤,精神创伤
  • Counselling is helping him work through this trauma.心理辅导正帮助他面对痛苦。
  • The phobia may have its root in a childhood trauma.恐惧症可能源于童年时期的创伤。
n.吊带,背带;托架( brace的名词复数 );箍子;括弧;(儿童)牙箍v.支住( brace的第三人称单数 );撑牢;使自己站稳;振作起来
  • The table is shaky because the braces are loose. 这张桌子摇摇晃晃,因为支架全松了。
  • You don't need braces if you're wearing a belt! 要系腰带,就用不着吊带了。
学英语单词
A fool's bolt is soon shot .
actual mixing cycle
Akula
allocation of agriculture
Amidozon
ampere-turns
arsenic ulcer
ataraxias
Bain circuit
baths
bells the cat
benzotriazole
cabalize
chromatin body
Chulmleigh
circular point at infinity
CMTMDS
collecting tubules
compensating market
contestations
creped paper
cut to a point
cyclomation
data reading system
decoupling era
diffusion speed
direct ascent weapon
doliops similis
dump skip
equatorial coordinates
euler microtime scale
ex-ante efficiency analysis
facsimiled
fibre grease
first-aid
food demand
formamide process
frondosely
fuck-me
full-year loss
glason
grammole
hand power crane
heating pattern
Heichelheim's tests
high speed paper cutting machine
highly internationalized operation
Hitzig tests
hornblendite
immedial sky blue
international reference group
inverse of multiplication
jayakody
Kanigogouma
keeps guard
keneret
lapsed sales discounts
ligamentous ankylosis
like fury
litas
logp
Michiganensians
milking pipeline
modelbuilding
neptunic rocks
not put a foot wrong
official position
one upper
organizational change
paralyses
perihysteric
physiology of protozoa
pneumatic linkage
poetica
preeclampsia
prosinesses
reauthorising
red prussiate of potash
residual competence
road-blocking
root-mean-square simulation error
Schwegenheim
shadflies
Shell sort
short rainbow
side-strain
sidescraper
sing low
slash with
sowles
stress-timeds
subtriplicated
sweep along
tethered unit
their majesties
treating waste water
tuco-tuco
vettura
wallabas
wavefront curvature
wely
when to charge